Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7143860 | Tiltable steering apparatus and method for snowmobiles, all-terrain vehicles, and other vehicles using handlebars as steering mechanisms | Dennis R. Marks | 2006-12-05 |
| 6260571 | Inflation valve assembly for liferafts | Robert L. Swanson | 2001-07-17 |
| 5203831 | Topping and dumping valve for inflatable structures | Robert L. Swanson | 1993-04-20 |
| 5188142 | Swivel valve | Robert L. Swanson | 1993-02-23 |